Fragrance device
US4666638A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1985 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Aug 27, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/88
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A light responsive, battery operated fragrance device is described. The device establishes an air stream over a fragrant material when an artificial light source such as a room lamp is energized. It includes a swivel light gathering body and a photo transistor mounted thereto which can be aimed at the artificial light source and provides directional discrimination and screening of other light sources. The unactuated device provides a limited flow of convection air current which maintains a relatively low level of fragrance dispersion in a room therefor. Upon actuation forced air flowing through the device causes a rapid increase in the level of fragrance dispersion in the room.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.